CN201465785U - Integral cast-type current transformer for GIS - Google Patents
Integral cast-type current transformer for GIS Download PDFInfo
- Publication number
- CN201465785U CN201465785U CN2009200343330U CN200920034333U CN201465785U CN 201465785 U CN201465785 U CN 201465785U CN 2009200343330 U CN2009200343330 U CN 2009200343330U CN 200920034333 U CN200920034333 U CN 200920034333U CN 201465785 U CN201465785 U CN 201465785U
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- shielding cylinder
- flange
- current transformer
- gis
- type current
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Abstract
The utility model relates to the field of GIS high-pressure electric appliances, in particular to an integral cast-type current transformer for a GIS, comprising an outer shell, a shielding cylinder arranged in the outer shell, a coil cast outside the shielding cylinder, an upper flange and a lower flange. The upper flange and the lower flange are arranged at the upper end and the lower end of the shielding cylinder; an insulated piece is arranged between the shielding cylinder and the upper flange; and the upper end and the lower end of the outer shell are respectively fixed with the upper flange and the lower flange. The integral cast-type current transformer for a GIS is characterized in that the inner wall or the outer wall of the outer shell is provided with a conductive plate connecting the upper flange and the lower flange.
Description
Technical field
The utility model relates to GIS High-Voltage Electrical Appliances field, particularly a kind of GIS integrated casting type current transformer.
Background technology
The GIS Current Transformer is one of vitals of high pressure GIS electrical equipment.At present, pour into a mould after the current mutual inductor coil assembling with customer requirements in the mill, and coil is placed outside the SF6 air chamber, reduce the assembling amount of parts of SF6 air chamber, farthest reduce cleannes and moisture SF6 gas-insulated Effect on Performance.The critical component that this type of integrated casting type current transformer forms the SF6 air chamber is shielding cylinder and upper and lower flange, and wherein lower flange and shielding cylinder lower end are an integral body; Simultaneously,, between upper flange and shielding cylinder, insulating part is set, avoids upper flange, lower flange, shielding cylinder and shell to form the short circuit circle of coil in order to improve the accuracy of current transformer; But its shell superheating phenomenon in use often takes place in this type of integrated casting type current transformer, and especially the heating phenomenon of high-power product is more serious.
Summary of the invention
The purpose of this utility model is to provide a kind of GIS the integrated casting type current transformer, can eliminate the shell superheating phenomenon, improves the design voltage and the power of this series products.
In order to achieve the above object, the utility model is achieved by the following technical solutions.
A kind of GIS integrated casting type current transformer comprises shell, and shielding cylinder in the enclosure is set, and is cast in the outer coil of shielding cylinder, is arranged on the upper and lower flange of shielding cylinder upper and lower end; Be provided with insulating part between described shielding cylinder and the upper flange, the upper and lower end of shell is fixed with upper and lower flange respectively, it is characterized in that, is provided with the conductive plate that connects upper and lower flange along outer casing inner wall or outer wall.
Further characteristics of the present utility model are: described conductive plate is copper coin or aluminium sheet.
In the utility model, be provided with insulating part between shielding cylinder and the upper flange, be provided with the conductive plate that connects upper and lower flange along outer casing inner wall or outer wall.In use, the resistance of baffler be far smaller than shell resistance, the loop current by shell sharply descends, the superheating phenomenon of shell is eliminated, therefore, the design voltage of this series products and power can be improved.Simultaneously, the material selection scope of shell can enlarge, and can use the general cheap material of electric conductivity, reduces product cost.
Description of drawings
Fig. 1 is the structural representation of a kind of GIS of the present utility model with the integrated casting type current transformer; Among the figure: 1 is shell; 2 is shielding cylinder; 3 is coil; 4 is stationary half; 5 is upper flange; 6 is lower flange; 7 is conductive plate; 8 is terminal box.
Embodiment
With reference to Fig. 1, be a kind of GIS integrated casting type current transformer, comprise shell 1, the upper end has the shielding cylinder 2 of outward flange, lower flange 6 and shielding cylinder 2 lower ends are connected as a single entity, and outside shielding cylinder 2, two stationary half 4 and upper flange 5 pass through bolted to coil 3 by poured with epoxy resin, the outward flange of the inward flange of two stationary half 4 and upper flange 5 clamping shielding cylinders 2 wherein, and be provided with insulating part between shielding cylinder 2 and the upper flange 5.
The upper and lower end of shell 1 is connected on the upper and lower flange 5,6, and shell 1 is provided with terminal box 8, is provided with the conductive plate 7 that connects upper and lower flange 5,6 along shell 1 inwall, and conductive plate 7 also can be along shell 1 outer wall setting certainly.Conductive plate 7 preferably along shell 1 inwall setting, does not influence the attractive in appearance of shell 1 like this; Conductive plate 7 is along shell 1 outer wall setting, and its overall dimension is excessive, influences the attractive in appearance of shell.In the present embodiment, conductive plate 7 is a copper coin, also available certainly aluminium sheet.
Claims (2)
1. a GIS integrated casting type current transformer comprises shell, and shielding cylinder in the enclosure is set, and is cast in the outer coil of shielding cylinder, is arranged on the upper and lower flange of shielding cylinder upper and lower end; Be provided with insulating part between described shielding cylinder and the upper flange, the upper and lower end of shell is fixed with upper and lower flange respectively, it is characterized in that, is provided with the conductive plate that connects upper and lower flange along outer casing inner wall or outer wall.
2. a kind of GIS integrated casting type current transformer according to claim 1 is characterized in that described conductive plate is copper coin or aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343330U CN201465785U (en) | 2009-08-27 | 2009-08-27 | Integral cast-type current transformer for GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343330U CN201465785U (en) | 2009-08-27 | 2009-08-27 | Integral cast-type current transformer for GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465785U true CN201465785U (en) | 2010-05-12 |
Family
ID=42393133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200343330U Expired - Lifetime CN201465785U (en) | 2009-08-27 | 2009-08-27 | Integral cast-type current transformer for GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465785U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360895A (en) * | 2011-08-31 | 2012-02-22 | 中国西电电气股份有限公司 | Current transformer for gas-insulated metal-enclosed switchgear |
| FR3016995A1 (en) * | 2014-01-24 | 2015-07-31 | Alstom Technology Ltd | ASSEMBLING A FLANGE ON A TUBE FOR A TRANSFORMER |
| CN106057405A (en) * | 2016-05-12 | 2016-10-26 | 宿迁市通用机械有限公司 | High-voltage transformer housing |
| CN106328363A (en) * | 2015-06-30 | 2017-01-11 | 西门子公司 | External current transformer assembly and gas insulated switchgear with same |
| CN110767413A (en) * | 2018-07-26 | 2020-02-07 | 河南平芝高压开关有限公司 | Current transformer for GIS and assembling method thereof |
-
2009
- 2009-08-27 CN CN2009200343330U patent/CN201465785U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360895A (en) * | 2011-08-31 | 2012-02-22 | 中国西电电气股份有限公司 | Current transformer for gas-insulated metal-enclosed switchgear |
| FR3016995A1 (en) * | 2014-01-24 | 2015-07-31 | Alstom Technology Ltd | ASSEMBLING A FLANGE ON A TUBE FOR A TRANSFORMER |
| CN106328363A (en) * | 2015-06-30 | 2017-01-11 | 西门子公司 | External current transformer assembly and gas insulated switchgear with same |
| CN106057405A (en) * | 2016-05-12 | 2016-10-26 | 宿迁市通用机械有限公司 | High-voltage transformer housing |
| CN110767413A (en) * | 2018-07-26 | 2020-02-07 | 河南平芝高压开关有限公司 | Current transformer for GIS and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |